arch/arm/mach-omap1/soc.h

   1 /*
   2  * OMAP cpu type detection
   3  *
   4  * Copyright (C) 2004, 2008 Nokia Corporation
   5  *
   6  * Copyright (C) 2009-11 Texas Instruments.
   7  *
   8  * Written by Tony Lindgren <tony.lindgren@nokia.com>
   9  *
  10  * Added OMAP4/5 specific defines - Santosh Shilimkar<santosh.shilimkar@ti.com>
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  25  *
  26  */
  27
  28 #ifndef __ASM_ARCH_OMAP_CPU_H
  29 #define __ASM_ARCH_OMAP_CPU_H
  30
  31 #ifndef __ASSEMBLY__
  32
  33 #include <linux/bitops.h>
  34
  35 /*
  36  * Test if multicore OMAP support is needed
  37  */
  38 #undef MULTI_OMAP1
  39 #undef OMAP_NAME
  40
  41 #ifdef CONFIG_ARCH_OMAP730
  42 # ifdef OMAP_NAME
  43 #  undef  MULTI_OMAP1
  44 #  define MULTI_OMAP1
  45 # else
  46 #  define OMAP_NAME omap730
  47 # endif
  48 #endif
  49 #ifdef CONFIG_ARCH_OMAP850
  50 # ifdef OMAP_NAME
  51 #  undef  MULTI_OMAP1
  52 #  define MULTI_OMAP1
  53 # else
  54 #  define OMAP_NAME omap850
  55 # endif
  56 #endif
  57 #ifdef CONFIG_ARCH_OMAP15XX
  58 # ifdef OMAP_NAME
  59 #  undef  MULTI_OMAP1
  60 #  define MULTI_OMAP1
  61 # else
  62 #  define OMAP_NAME omap1510
  63 # endif
  64 #endif
  65 #ifdef CONFIG_ARCH_OMAP16XX
  66 # ifdef OMAP_NAME
  67 #  undef  MULTI_OMAP1
  68 #  define MULTI_OMAP1
  69 # else
  70 #  define OMAP_NAME omap16xx
  71 # endif
  72 #endif
  73
  74 /*
  75  * omap_rev bits:
  76  * CPU id bits  (0730, 1510, 1710, 2422...)     [31:16]
  77  * CPU revision (See _REV_ defined in cpu.h)    [15:08]
  78  * CPU class bits (15xx, 16xx, 24xx, 34xx...)   [07:00]
  79  */
  80 unsigned int omap_rev(void);
  81
  82 /*
  83  * Get the CPU revision for OMAP devices
  84  */
  85 #define GET_OMAP_REVISION()     ((omap_rev() >> 8) & 0xff)
  86
  87 /*
  88  * Macros to group OMAP into cpu classes.
  89  * These can be used in most places.
  90  * cpu_is_omap7xx():    True for OMAP730, OMAP850
  91  * cpu_is_omap15xx():   True for OMAP1510, OMAP5910 and OMAP310
  92  * cpu_is_omap16xx():   True for OMAP1610, OMAP5912 and OMAP1710
  93  */
  94 #define GET_OMAP_CLASS  (omap_rev() & 0xff)
  95
  96 #define IS_OMAP_CLASS(class, id)                        \
  97 static inline int is_omap ##class (void)                \
  98 {                                                       \
  99         return (GET_OMAP_CLASS == (id)) ? 1 : 0;        \
 100 }
 101
 102 #define GET_OMAP_SUBCLASS       ((omap_rev() >> 20) & 0x0fff)
 103
 104 #define IS_OMAP_SUBCLASS(subclass, id)                  \
 105 static inline int is_omap ##subclass (void)             \
 106 {                                                       \
 107         return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;     \
 108 }
 109
 110 IS_OMAP_CLASS(7xx, 0x07)
 111 IS_OMAP_CLASS(15xx, 0x15)
 112 IS_OMAP_CLASS(16xx, 0x16)
 113
 114 #define cpu_is_omap7xx()                0
 115 #define cpu_is_omap15xx()               0
 116 #define cpu_is_omap16xx()               0
 117
 118 #if defined(MULTI_OMAP1)
 119 # if defined(CONFIG_ARCH_OMAP730)
 120 #  undef  cpu_is_omap7xx
 121 #  define cpu_is_omap7xx()              is_omap7xx()
 122 # endif
 123 # if defined(CONFIG_ARCH_OMAP850)
 124 #  undef  cpu_is_omap7xx
 125 #  define cpu_is_omap7xx()              is_omap7xx()
 126 # endif
 127 # if defined(CONFIG_ARCH_OMAP15XX)
 128 #  undef  cpu_is_omap15xx
 129 #  define cpu_is_omap15xx()             is_omap15xx()
 130 # endif
 131 # if defined(CONFIG_ARCH_OMAP16XX)
 132 #  undef  cpu_is_omap16xx
 133 #  define cpu_is_omap16xx()             is_omap16xx()
 134 # endif
 135 #else
 136 # if defined(CONFIG_ARCH_OMAP730)
 137 #  undef  cpu_is_omap7xx
 138 #  define cpu_is_omap7xx()              1
 139 # endif
 140 # if defined(CONFIG_ARCH_OMAP850)
 141 #  undef  cpu_is_omap7xx
 142 #  define cpu_is_omap7xx()              1
 143 # endif
 144 # if defined(CONFIG_ARCH_OMAP15XX)
 145 #  undef  cpu_is_omap15xx
 146 #  define cpu_is_omap15xx()             1
 147 # endif
 148 # if defined(CONFIG_ARCH_OMAP16XX)
 149 #  undef  cpu_is_omap16xx
 150 #  define cpu_is_omap16xx()             1
 151 # endif
 152 #endif
 153
 154 /*
 155  * Macros to detect individual cpu types.
 156  * These are only rarely needed.
 157  * cpu_is_omap310():    True for OMAP310
 158  * cpu_is_omap1510():   True for OMAP1510
 159  * cpu_is_omap1610():   True for OMAP1610
 160  * cpu_is_omap1611():   True for OMAP1611
 161  * cpu_is_omap5912():   True for OMAP5912
 162  * cpu_is_omap1621():   True for OMAP1621
 163  * cpu_is_omap1710():   True for OMAP1710
 164  */
 165 #define GET_OMAP_TYPE   ((omap_rev() >> 16) & 0xffff)
 166
 167 #define IS_OMAP_TYPE(type, id)                          \
 168 static inline int is_omap ##type (void)                 \
 169 {                                                       \
 170         return (GET_OMAP_TYPE == (id)) ? 1 : 0;         \
 171 }
 172
 173 IS_OMAP_TYPE(310, 0x0310)
 174 IS_OMAP_TYPE(1510, 0x1510)
 175 IS_OMAP_TYPE(1610, 0x1610)
 176 IS_OMAP_TYPE(1611, 0x1611)
 177 IS_OMAP_TYPE(5912, 0x1611)
 178 IS_OMAP_TYPE(1621, 0x1621)
 179 IS_OMAP_TYPE(1710, 0x1710)
 180
 181 #define cpu_is_omap310()                0
 182 #define cpu_is_omap1510()               0
 183 #define cpu_is_omap1610()               0
 184 #define cpu_is_omap5912()               0
 185 #define cpu_is_omap1611()               0
 186 #define cpu_is_omap1621()               0
 187 #define cpu_is_omap1710()               0
 188
 189 /* These are needed to compile common code */
 190 #ifdef CONFIG_ARCH_OMAP1
 191 #define cpu_is_omap242x()               0
 192 #define cpu_is_omap2430()               0
 193 #define cpu_is_omap243x()               0
 194 #define cpu_is_omap24xx()               0
 195 #define cpu_is_omap34xx()               0
 196 #define cpu_is_omap44xx()               0
 197 #define soc_is_omap54xx()               0
 198 #define soc_is_am33xx()                 0
 199 #define cpu_class_is_omap1()            1
 200 #define cpu_class_is_omap2()            0
 201 #endif
 202
 203 /*
 204  * Whether we have MULTI_OMAP1 or not, we still need to distinguish
 205  * between 310 vs. 1510 and 1611B/5912 vs. 1710.
 206  */
 207
 208 #if defined(CONFIG_ARCH_OMAP15XX)
 209 # undef  cpu_is_omap310
 210 # undef  cpu_is_omap1510
 211 # define cpu_is_omap310()               is_omap310()
 212 # define cpu_is_omap1510()              is_omap1510()
 213 #endif
 214
 215 #if defined(CONFIG_ARCH_OMAP16XX)
 216 # undef  cpu_is_omap1610
 217 # undef  cpu_is_omap1611
 218 # undef  cpu_is_omap5912
 219 # undef  cpu_is_omap1621
 220 # undef  cpu_is_omap1710
 221 # define cpu_is_omap1610()              is_omap1610()
 222 # define cpu_is_omap1611()              is_omap1611()
 223 # define cpu_is_omap5912()              is_omap5912()
 224 # define cpu_is_omap1621()              is_omap1621()
 225 # define cpu_is_omap1710()              is_omap1710()
 226 #endif
 227
 228 #endif  /* __ASSEMBLY__ */
 229 #endif